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Machine translation
1. (WO1980001399) FLUID PUMP AND METHOD FOR OPERATING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001399    International Application No.:    PCT/US1979/000700
Publication Date: 10.07.1980 International Filing Date: 31.08.1979
IPC:
F04B 35/04 (2006.01), H02K 41/02 (2006.01)
Applicants:
Inventors:
Priority Data:
1676 08.01.1979 US
Title (EN) FLUID PUMP AND METHOD FOR OPERATING SAME
(FR) POMPE A FLUIDES ET SA METHODE DE FONCTIONNEMENT
Abstract: front page image
(EN)The fluid pump (10) comprises at least one pumping cylinder (14, 16) having a pumping piston mounted therein for reciprocating movement and including an inlet valve (36) and an outlet valve (38) for permitting the entry and exit, respectively, of fluid into the cylinder in response to reciprocating movement of the piston. A piston rod (26) is connected to the pumping piston and extends outwardly from the cylinder where it is connected to a piston made of magnetic material. The magnetic piston (28) is surrounded by a plurality of coils (42-56) which are controlled for causing sequential actuation of the coils to move the magnetic piston back and forth in an axial direction, thereby causing reciprocating movement of the pumping cylinder. The method for pumping fluid with the pump comprises sequentially actuating different portions of the coils in such a manner that during movement of the piston between its extreme positions only those coils located most closely to the piston will be actuated at any given time.
(FR)La pompe a fluides (10) comprend au moins un cylindre de pompage (14, 16) dans laquelle est monte un piston de pompage anime d"un mouvement alternatif et comprenant une soupape d"entree (36) et une soupape de sortie (38) pour permettre l"entree et la sortie, respectivement, du fluide dans le cylindre en reponse au mouvement alternatif du piston. Une bielle de piston (26) est reliee au piston de pompage et s"etend vers l"exterieur a partir du cylindre ou elle est connectee a un piston fait en un materiau magnetique. Le piston magnetique (28) est entoure d"une pluralite de bobines (42-56) qui sont commandees sequentiellement pour deplacer le piston magnetique en avant et en arriere dans le sens axial, provoquant ainsi le mouvement alternatif du cylindre de pompage. La methode de pompage de fluide avec la pompe consiste a actionner sequentiellement les differentes parties des bobines de telle maniere que pendant le mouvement du piston entre ces positions extremes, seules les bobines situees le plus pres du piston soient actionnees a un moment donne.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)